Article date: Feb 1980
Article title: The coloring of unusual maps leads into uncharted territory
Mathematical Games column? Y
Book: 15. The Last Recreations: Hydras, Eggs, and Other Mathematical Mystifications
Chapter: 6. M-Pire Maps
This data confirmed? yes
Notes
Peter Rowlett (27 August 2022):
Peter Rowlett initial guess (Uncertain)
Peter Rowlett (5 November 2023):
I have seen this chapter and column side-by-side and they match.